baber/WOPTO huggingface dataset:
Patent GB-1522522-A (GB)
Title: Electric windscreen wiper systems
IPC: B60S1/08
Filed: 1975-05-29
Abstract: 1522522 Automatic control of D.C. motors GENERAL MOTORS Ltd 30 April 1976 [29 May 1975] 23387/75 Heading H2L A windscreen wiper system comprises a pair of D.C. motors 28, 30 which drive respective wiper arm and blade assemblies and are controlled by respective transistor switching circuits 46, 48 and 52, 54, whose transistors 46, 52 are controlled by the outputs of similar operational amplifiers 34, 38 to whose inputs are applied signals from potentiometers 24, 26 having tappings notionally movable with respective rotary members driven by the respective motors, the signals thus varying in accordance with the motor positions and speeds and controlling the motors to run in synchronism, the arrangement being such that, when the motors are in the same position, both amplifiers 34, 38 produce outputs to switch on their respective motors and, if one motor (say 28) runs faster than the other, then the signals to amplifier 34 differ to cause it to switch off transistors 46, 48 and motor 28, which slows down until motor 30 catches up to restore the signal equality at amplifier 34 and so allow it to switch on motor 28. Each potentiometer 24, 26 comprises an annular resistance track (14) located between and connected at respective ends to annular contact tracks (12, 16), the three tracks being carried on one face of a gear wheel (10) driven by the motor and being connected to the positive and earth terminals and to the output to the amplifiers by means of reflective contact arms (20, 18, 22), Fig. 1 (not shown). The invention may be applied to control more than two motors, for example three motors whose operational amplifiers are each supplied with the signal from its respective motor and a signal from a different one of the other two motors.
Patent GB-1110014-A (GB)
Title: Foundation garment
Inventor: GRECO RALPH
IPC: A41C1/00
Filed: 1965-06-01
Abstract: 1,110,014. Girdles. FORMFLEX FOUNDATIONS Inc. 1 June, 1965, No. 23403/65. Heading A3V. Panty girdle, girdle &c. comprises twoway stretch main panels 20 and 22, a substantially elliptically shaped elastic front insert 12 with an overlying centrally disposed inelastic panel 14 stitched thereto at 16 and a two-way stretch pear-shaped rear insert (44), Fig. 2 (not shown), made of a plurality of layers. Thigh panels 28 of two-way stretch material, if provided, are secured to a single layer crotch panel 32.
Patent GB-572501-A (GB)
Title: Improvements in and connected with the mounting of machine guns and ammunition belt boxes in aircraft wings
IPC: F41A23/00
Filed: 1939-08-14
Abstract: 572,501. Machine gun mountings for aircraft. MARTIN, J., and MARTINBAKER AIRCRAFT CO., Ltd. Aug. 14, 1939, No. 23439. [Classes 92 (i) and 92 (ii)] Relates to machine-gun mountings for aircraft wings in which the gun is detachably supported on an arm 6 provided with means for making initial adjustments in elevation and training relative to the fixed parts 8, 19 of the wing structure. According to the invention, the gun arm 6 is provided on one side with horizontal supports 21, 22 for the ammunition beltbox 5 and on the other side with brackets 23, 24 for detachably securing the gun close to the arm, the gun and box extending fore and aft alongside each other and substantially above the arm. In the form shown, a belt-box, as described in Specifications 557,685 and 557,686, is mounted on a gun arm similar to that described in Specification 457,570. The belt-box is detachably mounted on the supports 21, 22 by fittings 38 and split pins 40 and has an arcuate belt conduit 43 attachable to the gun feed-box. The gun can be readily detached from its supporting forks 32 with or without the belt-box by removing pins 25, 33. The used belt links are discharged by a shoot 44 and the spent cartridge cases by a shoot 46.
Patent GB-1213699-A (GB)
Title: Improvements in or relating to switches
Inventor: WOODHEAD HARRY STANLEY
IPC: H01H36/00
Filed: 1968-05-17
Abstract: 1,213,699. Movable magnet switches. STANDARD TELEPHONES & CABLES Ltd. 17 May, 1968, No. 23493/68. Heading H1N. A magnetic switch operable due to movement of its permanent magnet or movable magnetic part has a sealed magnetic contact capsule with one well formed by one or more inner magnetic members sealed through a central aperture in an outer annular magnetic member and a magnetic contact lamina normal to the axis of the outer magnetic member. The contact capsules may be similar to those used in the relays of Specifications 1,021,047, 1,026,564, 1,026,565, 1,026,566, 1,026,567, 1,098,145, 1,099,081, 1,115,401, 1,119,126, 1,126,869 and 1,131,928, and provide one or more contact sets with normally open or normally closed or changeover contacts (Figs. 1 to 10, not shown). In Fig. 11 the inner magnetic member 108 is surrounded by an insulating washer 107 seating one end of a compression spring 106 which biases a magnetic push-button 101 to a position in which its flanges engage co-operating flanges 102 of a housing 103. When the push-button 101 is depressed it moves a permanent magnet 105 mounted thereon adjacent to the member 108 to effect contact operation. The flanges of the push-button 101 engage the contact capsule 104 to prevent engagement of the magnet 105 and member 108. In alternative arrangements the magnet may have a lost-motion mounting on the magnetic push-button (Fig. 12, not shown), the contact capsule may be resiliently mounted (Fig. 13, not shown) or the contact capsule may be mounted so as to be moved with the push-button relative to a fixed magnet (Fig. 14, not shown). In Fig. 15 the permanent magnet 105 has a magnetic cap 153 and disc 151 so as to attract magnetic washer 156 to bridge the gap between the disc 161 and pushbutton 101. The push-button has a friction reducing nylon liner 154 and when depressed it moves the washer 156 away from the disc 151 to divert flux to the contact capsule 104. When pressure is removed from the push-button the washer 156 and push-button are returned to the position shown by the permanent magnet.
Patent GB-1511554-A (GB)
Title: Electro-optical switch or modulator devices
IPC: G02F1/05
Filed: 1975-05-30
Abstract: 1511554 Controlling light SIEMENS AG 30 May 1975 [9 Sept 1974] 23554/75 Heading G2F An electro-optic switch or modulator comprises intersecting or branching optical waveguides formed on a substrate, a region of at least one guide having an electric field dependent refractive index, and an inter-digitated electrode structure adjacent the region and spaced therefrom by a dielectric insulating layer. Such a structure and its associated insulating layer may be provided between the guide and substrate and/or on the other side of the guide. The electrode spacings in each structure may be constant or may vary. Different structures may have different constant spacings for wavelength selection, or varying spacings, and the electrodes may be directed differently, Fig. 6, so that input radiation in guide 2 may be independently diverted into guides 24 and 25. In Fig. 6, the structures 4 lie below and above the guide branching region. In Fig. 4 the central structure 4 enables input light to be distributed among the guides 2 in a desired manner. The other structures enable switching and modulation of individual beams. The device of Fig. 5 (not shown) comprises a guide ending in a branch point from which a plurality of guides extend each of which is provided with a modulator of the form shown in Fig. 4. The dielectric insulating layer itself may have electro-optic characteristics to reinforce the periodic characteristic formed when the device is energized. The longitudinal or transverse electro-plate effect may be used.
Patent GB-301949-A (GB)
Title: Improvements in or relating to manufacturing hydrocarbons
IPC: C10G1/06
Filed: 1927-09-07
Abstract: 301,949. Zacon, J. A. A. Sept. 7, 1927. Lift valves; seats.-A valve for introducing gases under pressure into a reaction vessel for the distructive hydrogenation of carbonaceous materials comprises a cast steel body S closed at the top by a coan C provided with a stuffing box e. The valve disc S<2> has a circular rib X which projects into a corresponding recess X' in the valve seating the recess X<1> being filled with fine silicious sand. A by pass R having a cock R' permits equalization of pressures on each face of the valve. The valve is provided with a jacket o through which is circulated fluid at the pressure obtaining in the reaction chamber.
Patent GB-137789-A (GB)
Title: Improvements in connection with pistons and their rods for external crosshead engines, more particularly of internal combustion type
IPC: F16J1/12
Filed: 1919-09-25
Abstract: 137,789. North British Diesel Engine Works, Ltd., and Maclagan, J. C. M. Sept. 25, 1919. Pistons; pistons, attaching to rod.-In an internal-combustion or other engine, the piston-rod is formed with a cylindrical parallelsided head B at the end and is passed through the piston from the working face. The head bears on a recessed seating in the piston and the rod is secured by a screw E screwing on to an enlarged part of the rod. A cap G of heat-resisting material is screwed to the end of the rod.
Patent GB-235909-A (GB)
IPC: B64D33/10
Abstract: 235,909. Lamblin, A. Aug. 2, 1923, [Convention date]. Radiators, aircraft and like.-A radiator particularly adapted for aeroplanes comprises a relativelv small hot-water header 1 located within or adjacent to a large header or feeder 2 for the cooled water, and a series of elements 120. Any air present in the circulating system is forced into the header 2 and may escape through the filling plug 132, while any steam generated in the jacket of the motor 131 is exposed to the cooling effect of the surrounding air in the elements 120 and is to a great extent condensed, thus avoiding waste of water by direct escape of steam through the plug 132. The headers may be arranged within the leading edge of an aeroplane wing 62 with the elements 120 fitting closely to the edge of the wing so as to avoid eddies and offer little resistance to motion. Specifications 127,338, 206,819 and 209,769 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter :--Each cooling element may comprise several concentric flat tubes 120<1>, 120<2>, 120<3>, Fig. 5 (Cancelled), and the hot water may be supplied to the header 2 through a pipe 10 and the cooled water leave the header 1 by a pipe 11, the header 1 being only partly embodied in the header 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-200731-A (GB)
Title: An improvement on maintenance and cleansing of secondary batteries
IPC: H01M50/103
Filed: 1922-10-12
Abstract: 200,731. Penrose, G. A. Oct. 12, 1922. Cleaning secondary batteries. A groove A is formed in the bottom of the battery cell towards which the bottom slopes on both sides. In one side of the cell, opposite the groove A is a screwthreaded opening E which can be closed by a washer F and plug G. By removing the plug and washer the electrolyte can be withdrawn and the cell washed out with water introduced through the filling opening in the top of the cell. The electrodes rest on bearers and ribs J, K.
Patent GB-461145-A (GB)
Title: Improvements in furnaces for solid fuels
IPC: F23L1/02
Filed: 1935-08-24
Abstract: 461,145. Air supply to furnaces; grates. COENEN FILS, E. J.-B. Aug. 24, 1935, No. 23757. Convention date, April 4. [Class 51 (i)] In a solid fuel furnace having a valvecontrolled admission opening for combustion air, entering under natural draught, the valve is balanced so as to close, in spite of the gravity action which tends to open it, when the inner pressure becomes greater than the external pressure. The valve 40 is pivoted at 41 and if the internal pressure becomes greater than the external, is closed by the action of the air on the wall 40a and on a flange 40b. The valve is adjustable by means of a bolt 42 movable along a transverse slot 40c. The Specification as open to inspection under Sect. 91 comprises also a furnace, Fig. 1 (Cancelled), with two inclined grates each formed by tiers of bars 2 and supplied with fuel from a hopper 14 and with a lower horizontal grate comprising bars 22 adapted to be rocked by means of a handle 28, a crank 26, member 25 and cranks 23. The upper part of each bar 2 is inclined at 2a from a point behind the front edge 2b of the bar immediately above. Grooves 4 in the nose of the bar allow air to pass to the inclined face from channels 5 between the bars. Air supplied through inlet 7 is directed into the channels by walls 8, 9 at the rear ends of the bars. This subject-matter does not appear in the Specification as accepted.
Patent GB-599324-A (GB)
Title: Improved scale-reading arrangement for machine tools
IPC: G01D5/32
Filed: 1945-09-14
Abstract: 599,324. Indexing. WATTS & SON, Ltd., E.R., GODFREY, C. J., and TOWNS, V. W. H. Sept. 14, 1945, No. 23784. [Class 83 (iii)] [Also in Group XX] To eliminate centering and graduation errors in machine tools having a rotary circular table with a divided circle, the latter is read by an optical system which projects images of two diametrically opposite portions of the scale in superposition or juxtaposition on to a screen or into an eyepiece. As shown, a lamp 4 illuminates the scale 2 at diametrically opposite points by means of prism 5, lenses 6 and prism 8, the two images of these points of the scale being projected to the screen 14 via prism 9, lens 10, prism 12 and lens 13. A fine reading arrangement comprises a refractor block 7 pivoted about a vertical axis 15 to deflect one scale image, the fine reading scale 11 carried thereby also being visible on the screen 14 or in the eyepiece.
Patent GB-1397891-A (GB)
Title: Method of terminating electrical conductors
IPC: H01R4/02
Filed: 1973-05-18
Abstract: 1397891 Terminating electrical conductors; heading; welding by fusion ESSEX INTERNATIONAL Inc 18 May 1973 [18 May 1972 24 Oct 1972] 23808/73 Headings B3A B3H and B3R [Also in Division H2] A method of terminating one end of an electrical conductor 1, comprises supporting a conductor with its one end substantially vertical with its free end lowermost, heating the conductor from its free end to melt the free end, continuing to heat the conductor until the combined forces of gravity and surface tension shape the molten metal into an enlarged pear-shaped molten mass 21 suspended from the conductor and discontinuing heating the conductor before the molten mass separates from the conductor. The end of the conductor 1 is held in a clamp 6, which is connected to the negative terminal 8 of an electrical source and it is positioned over a tungsten electrode 14 of an arc welding machine 12, the electrode being connected to a positive terminal 9 of the source. An arc is sustained across the gap d between the electrode and wire end and as the wire melts it forms the pearshaped mass 21, which as it grows bigger moves up the wire. The electrode is moved upwardly to maintain the gap d constant and a timer 11 cuts off the electric supply. Alternatively the electrode remains stationary and the arc is stopped when the gap is too great for the voltage to maintain it. Argon is supplied from a source 18 via a valve 19, which is also controlled by the timer 11. The solidified masses are subsesequently formed into terminals of different shapes, Figs. 8-18 (not shown), e.g. a mushroom shaped terminal (24), Fig. 6, is formed in mating dies 38, 41, Fig. 22. The wire may be stranded or be a single solid wire and it may be coated with PVC insulation 3 or varnish. In the latter case, the arc potential is sufficient to break down the insulation of the varnish and as the varnish burns off no argon is used, but the mass is allowed to cool in argon. Copper and aluminium wires may be joined, Fig. 18 (not shown), and a nodule comprised of an alloy of these metals is formed. By varying the lengths of the wires the proportions of the metals in the alloy may be varied. In an alternative method the conductor comprises an aluminium wire electrode (66), Fig. 27 (not shown), which melts to form a pear-shaped mass 68, Fig. 28, and at the same time melts the end of a stranded wire, the electrode housing being lowered progressively to maintain the arc between the wires. When the molten wire ends have reached the desired size, the arc is extinguished and the molten ends are united into a single module (69), Fig. 29 (not shown).
Patent GB-277375-A (GB)
Title: Process for the production of rubber coatings
IPC: C08J5/02
Filed: 1927-09-12
Abstract: 277,375. K. D. P., Ltd. Sept. 10, 1926, [Convention date]. Indiarubber &c., attaching to other articles.- Rubber coatings are produced on surfaces, for example of wood, metal, stone, leather, by spraying latex, and simultaneously evaporating the water from the latex by the use of a hot gaseous medium for atomizing the latex, with or without an additional supply of heat. The latex may be mixed with other substances, vulcanized, concentrated, &c. The pressure employed for spraying may be greater than that required for merely atomizing the latex. By varying the composition of the latex during spraying, films having varying characteristics may be obtained The process is suitable for the production of wall or floor coverings, roofing, paving material &c., and for uniting diverse materials with a rubber bond, by pressing the rubber-coated surfaces into contact and vulcanizing.
Patent GB-240824-A (GB)
Title: Improvements in apparatus for drying fuel or the like
IPC: F26B17/16
Filed: 1925-09-25
Abstract: 240,824. International Combustion Engineering Corporation, (Assignees of Kreisenger, H.). Oct. 3, 1924, [Convention date]. Gravity, materials descending by; heating-fittings; air and gases, controlling direction of flow of. - The fuel &c. passes from the bunkers C through a series of vertical conduits formed by spaced superposed hollow steam-heated grids 18 having common steam inlet and outlet pipes 30, 28 and stacked so that the transverse bars 19 of alternate grids are arranged in staggered relation with each other, and is discharged from hoppers D. While passing through the conduits the fuel is subjected to transverse air or gas currents which are drawn into and withdrawn from the spaces on opposite sides of the conduits through openings 14, 15 by a fan. The grids are connected to the steam pipes by swing pipes 29, 31 which allow for expansion, and are inclined so that the condensate flows towards the outlet pipe 28.
Patent GB-1164437-A (GB)
Title: Improvements relating to Soldering
Inventor: HOPKINS BASIL GERALD
IPC: B23K3/047
Filed: 1966-05-27
Abstract: 1,164,437. Soldering. PLESSEY CO. Ltd. 12 May, 1967 [27 May, 1966], No. 24022/66. Heading B3R. A soldering machine comprises a head, vertically displaceable on a column 3 against a spring, by a lever 4, and a scale 6 for indicating the pressure applied to the workpiece by a V-shaped stainless steel strip soldering element 2. In operation, lever 4 is actuated, until a switch 7 is operated, when a predetermined pressure is applied to the workpiece. A start pulse generating circuit 18 is triggered so as to deliver a start pulse to a monostable circuit 19 having a quasi-stable period of a duration sufficient for soldering to be effected. A pulse is fed to a power gate circuit 10 and current is fed to heat up element 2, through a transformer 8. The output from a thermocouple 11 increases with temperature, and this output is amplified at 12, and fed to a temperature indicator 16. The output is also fed to a D.C. level discriminator 13 which is also supplied with a predetermined temperature signal from a circuit 14. If the temperature from amplifier 12 reaches the predetermined value before the end of the period in circuit 19, a pulse from circuit 15 restores circuit 19, and closes circuit 10 so as to terminate the current supply to element 2. The magnitude of the soldering current can be adjusted by a circuit 20. The machine may be pedal operated, and elements may be in the form of a wire.
Patent GB-1474432-A (GB)
Title: Air supply systems for buildings
IPC: F24F1/0035
Filed: 1974-05-30
Abstract: 1474432 Air distributing devices; space heating or cooling apparatus R DARMSTADT and I ENCK 30 May 1974 [30 May 1973] 24107/74 Headings F4V and F4S In an air supply system for a building having a central air supply unit for feeding air under pressure to an air distributing device in each room, each device comprises an inlet 2 connected to the supply unit, an opening 3 to receive or discharge a convection air flow, an opening 4 defining an outlet for air flow through the inlet 2 and an outlet or inlet for the convection airflow, a heat exchanger 8 between openings 2, 3 and opening 4, an air-pressure reducing nozzle or nozzles 9 upstream of the heat exchanger for the air flow through inlet 2, and a switching valve 7 selectively operable to fully close opening 3 and fully open inlet 2 or to fully close inlet 2 and fully open opening 3. The device serves as a convector space heater or cooler when air is not supplied to the inlet 2. In the form shown, the valve 7 is pivotally mounted and is biased by a spring and/or gravity bias towards its position fully closing the inlet 2, and is movable against said bias to its position fully closing the opening 3 by the energy of the air flow through the inlet 2. The device is lined with sound insulating material 10, and the valve 7 is filled with such material. The wall of valve 7 which faces the inlet 2 is a perforated metal plate for sound attenuation. A pivotally mounted damper 13 below the opening 4 is biased by a spring and/or gravity bias to a vertical position, and is moved to the postion shown by airflow through the inlet 2 to increase the outflow velocity of such airflow. The heat exchanger 8 may be operated with hot or cold water, steam or oil, or may be electrically operated. The heat exchangers 8 of the system may be thermostatically controlled singly or in groups in accordance with the desired room temperature. In alternative constructions, the valve 7 is operated manually, or by power operated means actuated by switching pulses from the central supply unit. The central unit may filter, heat or cool, and dry or moisten the air supplied to the distributing devices.
Patent GB-724193-A (GB)
Title: Improvements relating to methods for the production of titanium tetrachloride
Inventor: EVANS ARTHUR WALLACE
IPC: C22B34/12
Filed: 1951-10-16
Abstract: A mixture of carbon and titanium-bearing material, e.g. rutile, is treated as a fluidized bed, e.g. at 500 DEG -1,000 DEG C., with chlorine or chlorine-containing gases under such conditions that titanium tetrachloride and chlorides of impurities, including ferric chloride, are volatilized and simultaneously removed.  A suitable apparatus comprises a furnace at the bottom of which is introduced initially air or oxygen and subsequently chlorine gas. The chlorine reacts with a finely ground heated mixture of titanium ore and powdered carbon which is introduced at the top of the furnace.  A continuous process is maintained by volatilizing all ore-impurities in addition to the titanium as their respective chlorides so that the composition of the reaction mixture remains constant.  The volatile chlorides and a small proportion of very fine solid particles are passed to the base of a column which is fitted at the top with a reflux condenser and at the bottom with a reboiler containing titanium tetrachloride.  A small proportion of the condensed titanium tetrachloride is taken off continuously from the condenser and purified.  The remainder is returned down the column where it condenses uprising gases and carries condensed chloride impurities &c. down to the reboiler.  Solids are removed from the reboiler as a slurry from which titanium tetrachloride is recovered.  Specification 29227/49 (as open to inspection under Section 91) is referred to.